For $18,000 you could've brought an existing 2-3 word domain website site already earning $1,000 to $1,500 a month consistently from Adsense with the ability to increase it to $1,800 to $2,500
In Today's world, Domain names have no value unless it's your Brands Domain.
Actually buying old parked domain, and starting to build it usually wakes up the leading domains ".com, .net, *oline.com, etc" owners to start competing against you, to push and keep you down.
I seen this before. .com was parked, and someone purchased it. Well the .net and *online.com were both fully developed sites, and once the .com start building, the .net and online.com made sure they didn't out grow them "including spending on advertising, threatening legal action for impersonating their site, branding a new name to direct the niche, building huge Facebook pages, etc". Any thing they could do, to increase the barrier to entry for the new domain.
They were not going to lose money, so they went on the extreme defensive.
In the end the .com never became successful (bottom of first page), and was a waste. The .net and *online.com still dominate.
The only way to make money off that domain is to sell it to someone else who loves the name "or collects domains".
Developed other domain tld, and Google's Changes have made Domain Names less valuable.
Content, and History are more important then keyword domain names today.